The 2015 season made a drastic and horribly disappointing U-turn from 2014 in Dallas. Fans and in some cases the media want someone to blame, and are going after all the usual suspects.
When things go bad for a sports team, the fans are quick to get out the long knives (not that they really can use them, but they do anyway). Things have gone incredibly, stunningly wrong for the Dallas Cowboys. Their fan base tends to have very high expectations for the team, despite the last twenty years or so of mediocre at best results.